Application specific networks-on-chip synthesis: An energy efficient approach

Somayeh Kashi, Ahmad Patooghy, Dara Rahmatiy, Mahdi Fazeli, Michel A. Kinsy

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations


Multiple Voltage Supply (MSV) chip fabrication is considered as a viable technique to address the power and thermal challenges of modern many-core systems. Efficiency of this technique has been demonstrated in application specific Network-on-Chips (NoCs) which have lots of cores and various operating voltages/frequencies. In this paper, a fourphase synthesis toolchain is proposed and evaluated for the design of multi-voltage application specific NoCs. The proposed synthesis toolchain performs i) core to router allocation, ii) voltage islanding to match voltages of cores connected to the same router, iii) hierarchical floorplanning to reduce the complexity of power delivery network, and iv) path allocation to connect routers based on the application requirements. The distinguishing feature of the proposed toolchain is that, for the first time, it performs the router allocation phase prior to voltage islanding. This offers more flexibility and more efficiency in the multi-voltage NoC synthesis. Experimental results on real world benchmarks show that the proposed toolchain provides 63% less energy consumption as well as more than double the design alternatives satisfying the benchmarks requirements compared to existing approaches.

Original languageEnglish (US)
Title of host publicationProceedings - 2018 IEEE Computer Society Annual Symposium on VLSI, ISVLSI 2018
PublisherIEEE Computer Society
Number of pages6
ISBN (Print)9781538670996
StatePublished - Aug 7 2018
Externally publishedYes
Event17th IEEE Computer Society Annual Symposium on VLSI, ISVLSI 2018 - Hong Kong, Hong Kong
Duration: Jul 9 2018Jul 11 2018

Publication series

NameProceedings of IEEE Computer Society Annual Symposium on VLSI, ISVLSI
ISSN (Print)2159-3469
ISSN (Electronic)2159-3477


Conference17th IEEE Computer Society Annual Symposium on VLSI, ISVLSI 2018
Country/TerritoryHong Kong
CityHong Kong


  • Application-specific chip
  • Custom NoC synthesis
  • Floorplanning
  • Islanding
  • Partitioning

ASJC Scopus subject areas

  • Hardware and Architecture
  • Control and Systems Engineering
  • Electrical and Electronic Engineering


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